This dude is the sickest artist around. He's an amazing stencil/graffiti artist, but the places he gets his artwork is amazing. I was looking through a book of his, and there were cows, things in Zoos, and some segregation wall in Palestine.
Just look at this page and see how sick some of his stuff is.
http://images.google.com/images?svnum=10&um=1&hl=en&client=firefox-a&rls=org.mozilla%3Aen-US%3Aofficial&q=banksy+art&btnG=Search+Images
The stuff on the wall in Palestine is awesome. Like the vacation style things. If you want an amazing book, and conversation piece buy one of his books. Sit it on your table, and people will be amazed.